Thevenin vs Voltios
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Thevenin
Instantly solve and understand electrical circuits with AI. Scan diagrams from textbooks or notes to get step-by-step solutions for DC/AC circuits, equivalents, and more. Designed for engineering students to grasp concepts and prepare for exams.
- Instant circuit scanning
- Step-by-step solution breakdown
- Support for DC/AC circuits
- Thevenin/Norton equivalents
- Nodal and mesh analysis
- Op-amp and BJT analysis
- High-accuracy component detection
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Thevenin AI is the fastest way to solve and understand STEM problems. Scan any problem and get a complete, step-by-step solution in seconds. Built for real STEM coursework — circuits, physics, chemistry, and more — not generic math. No guessing. No skipped steps. Just clear solutions you can follow. What you can do: Scan any STEM problem instantly Capture problems from textbooks, homework, labs, or handwritten notes. Thevenin AI detects equations, diagrams, circuits, structures, and values with high accuracy. See full step-by-step solutions Every solution is broken into structured, numbered steps so you can understand exactly how the answer is derived. Solve across STEM subjects Circuits (DC and AC, Thevenin and Norton equivalents, nodal and mesh analysis, op-amps, BJTs), physics (kinematics, forces, energy, electromagnetism, thermodynamics), chemistry (stoichiometry, equilibrium, reaction balancing, thermochemistry), and more. Understand, not memorize Go beyond answers. Learn the method behind each solution so you can apply it on exams. Built for real STEM students and engineers Designed around actual coursework. Works on messy diagrams, lab sketches, chemical structures, and real exam-style problems. Why Thevenin: Saves hours on assignments Removes trial and error Improves conceptual understanding Helps you prepare for exams faster Works when solution manuals don't Speed and performance: Full solution with steps in under 15 seconds for most problems High-accuracy recognition across equations, diagrams, and circuits Handles complex, multi-step problems Who it's for: STEM students and engineers Anyone taking circuits, physics, chemistry, electronics, or systems courses Students who want to actually understand the material, not just get answers Start solving Scan your problem Get the full solution Understand every step Download Thevenin, the AI for solving STEM, and turn any problem into a complete solution instantly. Terms of Service: https://www.thevenin.ai/terms.html Privacy Policy: https://www.thevenin.ai/privacy.html End User License Agreement (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Voltios
A puzzle game that teaches the fundamentals of electricity through interactive circuit building. Explore various electrical concepts like switches, short circuits, and Ohm's law in a visually engaging and playful manner. Designed for families with no ads or tracking, offering a complete learning experience with a single purchase.
- Interactive circuit building
- Learn electrical concepts visually
- Explore switches, fuses, and Ohm's law
- 68 levels across 9 worlds
- Offline play
- No ads or tracking
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Build circuits, light up the world. Voltios is a puzzle game for learning electricity visually. Connect wires, close switches and watch what changes: a bulb lights up, a motor spins or a fuse protects the circuit. LEARN BY DOING • Discover why current needs a closed circuit. • Experiment with switches, conductors and insulators. • Avoid short circuits and learn how to use fuses. • Compare series and parallel circuits. • Explore Ohm's law and measure voltage and current with the multimeter. 10 WORLDS, 78 LEVELS Keep the original 68 campaign levels and discover 10 new levels in Laboratory, available after completing World 5. All content is included in the app purchase and opens through gameplay progression. First Sparks · Switch It! · Danger: Short Circuit · Measure & Choose · Ohm's Law · Circuit Master · Clocks & Crossings · Real Life · Magnets & Motors · Laboratory. EXPERIMENT AT YOUR OWN PACE • Component explanations, hints and learning recaps. • A daily challenge to keep practising. • A refreshed interface and a multimeter integrated into the board. • English and Spanish. For iPhone and iPad with iOS/iPadOS 17 or later. ONE APP PURCHASE No subscriptions, in-app purchases or ads. No Voltios account required. Gameplay works offline; iCloud, Game Center and sending analytics require a connection. Progress is saved on your device and synced through iCloud when available. Game Center is optional and retains the original campaign achievements. We use TelemetryDeck for interaction analytics with anonymized identifiers, without advertising tracking. See our privacy policy for details.
Screenshots
Verdict
The clearest difference is price: Thevenin at Free against Voltios's $0.99. Thevenin also leads on update cadence (every 3 days vs every 2 weeks) and ratings volume (11 vs 2). Voltios's advantage is rating (5.0 vs 4.3) and chart position (#166 vs unranked). On ads, in-app purchases, device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Thevenin is free to download; Voltios costs $0.99 up front. Thevenin sells 2 in-app purchases, starting at $4.99 per month and Voltios sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Voltios holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: Thevenin has 11 ratings behind it against 2, so its average is the more settled of the two.
Thevenin ships an update every 3 days, Voltios every 2 weeks. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.
| Parameter | Thevenin | Voltios |
|---|---|---|
| Price | Free — better | $0.99 |
| Rating | 4.3 (11 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 11 — better | 2 |
| Update frequency | Every 3 days — better | Every 2 weeks |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium — better | Paid |
| Best chart rank | — | #166 — better |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 17.6 | 17.0 — better |
| Further details — not scored | ||
| Size | 43 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Thafier Mahmood | Ignacio Noguerol Sicilia |
Customer experience
Thevenin
Voltios
In-app purchases
Thevenin
- Pro$4.991 Month
- Pro3 Days trial$29.991 Year
Voltios
- Full Game$4.99
Questions
Is Thevenin free?
Is Voltios free?
Which has better reviews, Thevenin or Voltios?
Do Thevenin or Voltios have ads?
Which is updated more often, Thevenin or Voltios?
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